
TryHackMe
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PwnTillDawn Online Battlefield
HackThisSite
CodeRed by EC-Council
LetsDefend
Learn all about web hacking through online courses spanning the basics to advanced vulnerabilities

LeetCode
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HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

Which is more popular?
Based on our record, HackerRank should be more popular than PentesterLab. It has been mentioned 67 times since March 2021.
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| Website | pentesterlab.com | hackerrank.com |
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HackerRank is recommended for students, individual learners, and job seekers looking to improve their coding skills, as well as for companies seeking an efficient way to evaluate candidates' technical abilities during the hiring process.
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What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
HackerRank’s challenges cover a wide range of topics and difficulty levels, allowing developers to enhance their problem-solving skills and learn new algorithms and data structures. The competitive nature of...
HackerRank offers a wide array of challenges across various domains such as algorithms, mathematics, SQL, and functional programming. Its interface is user-friendly, and the platform provides detailed feedback on...
Recommendations tracked on public social media and blogs since March 2021.


Learning Websites: PortSwigger Web Security Academy - Free, comprehensive web security training. I recommend PortSwigger Academy if you are starting out. Bugcrowd University - Free educational resources for bug bounty hunters.... - Source: dev.to / over 1 year ago
For pentesting, look at the below: - https://portswigger.net/web-security - https://pentesterlab.com/ - https://www.hackthebox.com/. Source: over 3 years ago
These codes can be useful in different situations. A good site to test out different types of attacks and recon is: http://pentesterlab.com (mind it has a premium subscription plan but u can use it free). Source: about 4 years ago
This way, you transfer what you already know (problem-solving) but only change the syntax. Platforms like Hackerrank are also great to solve the same problem in different languages and learn from other people’s solutions. - Source: dev.to / about 1 year ago
Firstly, solve some common data structure problems with it. Implement some data structures like arrays, linked lists, stacks, queues, etc. You can check common problems on LeetCode, Hackerank or some other resources. - Source: dev.to / over 2 years ago
I don't have a consecutive internet connection and I can't keep up learning process so I started practicing in hackerrank.com I have started some challenges in python and c++ there. Thus I have no internet connection so I cannot practice... Source: almost 3 years ago
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